Processors don't work with max frequency where kernel-4.14.0-49.el7a.ppc64le runs on IBM Power9 server.

Issue

• Processors don't work with max frequency where kernel-4.14.0-49.el7a.ppc64le runs on IBM Power9 server.

# ppc64_cpu --frequency
min:    3.308 GHz (cpu 56)
max:    3.308 GHz (cpu 0)
avg:    3.308 GHz

$ cat ./sos_commands/processor/lscpu
Architecture:          ppc64le
Byte Order:            Little Endian
CPU(s):                128
On-line CPU(s) list:   0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124
Off-line CPU(s) list:  1-3,5-7,9-11,13-15,17-19,21-23,25-27,29-31,33-35,37-39,41-43,45-47,49-51,53-55,57-59,61-63,65-67,69-71,73-75,77-79,81-83,85-87,89-91,93-95,97-99,101-103,105-107,109-111,113-115,117-119,121-123,125-127
Thread(s) per core:    1
Core(s) per socket:    16
Socket(s):             2
NUMA node(s):          2
Model:                 2.2 (pvr 004e 1202)
Model name:            POWER9, altivec supported
CPU max MHz:           3800.0000
CPU min MHz:           2166.0000
L1d cache:             32K
L1i cache:             32K
L2 cache:              512K
L3 cache:              10240K
NUMA node0 CPU(s):     0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60
NUMA node8 CPU(s):     64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124

$ cat ./sos_commands/processor/cpupower_frequency-info
analyzing CPU 0:
  driver: powernv-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency:  Cannot determine or is not supported.
  hardware limits: 2.17 GHz - 3.80 GHz
  available frequency steps:  2.90 GHz, 2.88 GHz, 2.87 GHz, 2.85 GHz, 2.83 GHz, 2.82 GHz, 2.80 GHz, 2.78 GHz, 2.77 GHz, 2.75 GHz, 2.73 GHz, 2.72 GHz, 2.70 GHz, 2.68 GHz, 2.67 GHz, 2.65 GHz, 2.63 GHz, 2.62 GHz, 2.60 GHz, 2.58 GHz, 2.57 GHz, 2.55 GHz, 2.53 GHz, 2.52 GHz, 2.50 GHz, 2.48 GHz, 2.47 GHz, 2.45 GHz, 2.43 GHz, 2.42 GHz, 2.40 GHz, 2.38 GHz, 2.37 GHz, 2.35 GHz, 2.33 GHz, 2.32 GHz, 2.30 GHz, 2.28 GHz, 2.27 GHz, 2.25 GHz, 2.23 GHz, 2.22 GHz, 2.20 GHz, 2.18 GHz, 2.17 GHz
  available cpufreq governors: conservative userspace powersave ondemand performance
  current policy: frequency should be within 2.17 GHz and 3.80 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency: 3.80 GHz (asserted by call to hardware)